20050722: java problems with IDV

>From: Ed Hill <address@hidden>
>Organization: MIT
>Keywords: 200507221930.j6MJUkjo002938 IDV connection

Hi Ed-

>I just downloaded and installed the latest IDV using the InstallAnywhere
>package on a Linux (Fedora Core 3) system and have encountered the
>following bug:
>
>  ava.io.FileNotFoundException: Unable to
>open:http://stellwagen.er.usgs.gov/adria/models/roms_sed/roms_sed_coamps.xidv
>        at ucar.unidata.util.IOUtil.getInputStream(IOUtil.java:593)
>        at ucar.unidata.util.IOUtil.readContents(IOUtil.java:678)
>        at ucar.unidata.util.IOUtil.readContents(IOUtil.java:659)
>        at ucar.unidata.idv.IdvPersistenceManager.decodeXmlFile
>(IdvPersistenceManager.java:1567)
>        at ucar.unidata.idv.IdvPersistenceManager.decodeXmlFile
>(IdvPersistenceManager.java:1534)
>        at ucar.unidata.idv.IntegratedDataViewer.handleFileOrUrlAction
>(IntegratedDataViewer.java:992)
>        at ucar.unidata.idv.IntegratedDataViewer.handleAction
>(IntegratedDataViewer.java:1059)
>        at ucar.unidata.idv.DefaultIdv.handleAction(DefaultIdv.java:111)
>        at ucar.unidata.idv.IntegratedDataViewer.handleAction
>(IntegratedDataViewer.java:1022)
>        at ucar.unidata.idv.chooser.UrlChooser.loadURLInner
>(UrlChooser.java:176)
>        at ucar.unidata.idv.chooser.UrlChooser.loadURL
>(UrlChooser.java:152)
>        at ucar.unidata.idv.chooser.UrlChooser.access$000
>(UrlChooser.java:72)
>        at ucar.unidata.idv.chooser.UrlChooser$1.run
>(UrlChooser.java:191)
>        at ucar.unidata.util.Misc$2.run(Misc.java:773)
>
>
>Basically, any operation that attempts to connect to an external site
>results in a stack trace.  I know its not a firewall issue since (1) I
>have completely disabled my local machine's firewall and 

Does the ISP/organization have a firewall that might be blocking
Java from accessing the internet?

>(2) I have no
>trouble connecting to any of the URLs using either a web browser or a
>command line utility such as wget.

These will use a different program, so depending on the configuration,
java may be blocked from accessing the network.  For example, on
my firewall, I have to allow different version of Java to access
the internet, as well as different programs.

>So is there anything else I can do to help track down whats causing
>this?  Please let me know what I can do to help.  For instance, heres
>the output from "uname -a":
>
>  Linux ernie 2.6.12-1.1372_FC3 #1 Fri Jul 15 00:59:10 EDT 2005 
>    i686 i686 i386 GNU/Linux

I'm not sure what could be going on here except for some sort of
firewall.  Could you check for some firewall external to your
machine?

Don Murray
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publicly available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.